Muddle the Blueberries:

In a cocktail shaker, muddle the fresh blueberries with the simple syrup to release their juice and flavor.

Add Gin and Lemon Juice:

Pour the gin and fresh lemon juice into the shaker.

Shake:

Add ice to the shaker until it's about half full. Secure the lid and shake vigorously for about 15 seconds.

Strain:

Strain the mixture into a glass filled with ice, making sure to catch any blueberry skins or pulp.

Top with Soda Water:

Top off the glass with soda water to your liking. Stir gently to combine.

Garnish and Serve:

Garnish with a few fresh blueberries, a slice of lemon, and a sprig of mint.